Dttstee



Patented June 21, 1927.

UNlTED STATES.

FAR'NUM F. DORSEY, OF ROCHESTER, NEW YORK.

DUSTER.

No Drawing. Application filed June 15, 1922, Serial No. 568,649. Renewed November 6, 1926.

Thisv invention relates to clusters of the type in which fibrous or textile material is treated with some substance designed to promote the adhesion of dust to the fibers 6 of the duster:

The material most used for this purpose is mineral oil, with or without the addition of other materials to disguise the odor or to reduce the fluidity of the mineral oil.. While 10 mineral oil or other non-drying oil secures, to a certain degree, the desired result, it has certain disadvantages. Only a very small quantity can be used without danger of soiling articles upon which the duster is used, and the duster cannot be cleansed by washing without removing the oil.

The object of the present invention is to produce a duster which shall have a' pronounced adhesiveness for dust, and which may be washed without substantially impairing its effectiveness. I have discovered that this may be accomplished by the use of material which has heretofore been used as a rubber substitute, or as a dressing for leather.

This material, sometimes known as falrtis, consists of fatty, oil, such as'linseed oil, wood oil, cottonseed or castor oil, etc., chemically combined with sulphur, usually from 6% to 12% of the latter. The sulphur is combined with the oil either by heating the oil and sulphur together, or by treating the oil with sulphur monochloride. I

The faktis may be dissolved in light hydrocarbon oil or spirit, and it is applied to the fibers or fabric of the cluster by moisteninges the latter with the solution and'then drying out the solvent. The result is a microscopic coating of solid faktis upon the fibers. This coating is of a solid and somewhat gummy or rubber-like character. Although m so thin as to be invisible, the coating is firmly adherent to the fibers. It has a; pronounced capacity for holding dust, but it is not oily in character, as there is no oil in the free or fluid form: it is therefore incapable of moistening or staining articles to which the duster is applied. Water will not dislodge it from the fiber, and the duster may be washed repeatedly with cold water and neutral soap without substantial impairment.

The duster may have any of the usual forms, and may consist of'fibers, threads, or woven fabrics.

The invention claimed is: Y

A duster comprising textile material with a microscopic coating of faktis on the individual fibers thereof.

FARNUM F. DORSEY. 

